Dr. Timothy J. Ernesti DDS
Dentist
He is located at 4016 Morningside Avenue in Sioux City, IA 51106. Can help patients with the following: Dental Malocclusion, Dentin Hypersensitivity, Gum Disease / Gingivitis, Laser, Teeth Grinding, Veneers. His National Provider Identifier (NPI) number is 1972827194. Appointment can be made via the phone number (171) 227-6443.
Conditions treated
Dr. Timothy Joseph Ernesti, being an dentist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Timothy J. Ernesti.
- Bleeding Gums
- Cosmetic Dentistry
- Dental Bridges
- Dental Crowns and Caps
- Dental Emergency
- Dental Exam and Cleaning
- Dental Implants
- Dental Malocclusion
- Dentin Hypersensitivity
- Dentures
- Gum Disease / Gingivitis
- Invisalign
- Laser
- Oral Cancer Examination
- Pericoronitis
- Teeth Grinding
- Teeth Whitening
- Veneers
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Timothy J. Ernesti as in-network for the following 2026 plans.
Dental plans
BEST Life
Network data as of Sep 8, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| BEST Life Essential Basic Dental Plan | PPO · High | In Network | Accepting new patients |
| BEST Life Essential Value Dental Plan | PPO · High | In Network | Accepting new patients |
| BEST Life Preferred Dental Plan | PPO · High | In Network | Accepting new patients |
| BEST Life Superior Dental Plan | PPO · High | In Network | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Timothy J. Ernesti is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. Timothy J. Ernesti is enrolled to bill Medicare as a Practitioner - Dentist .
Bills through: Omaha Tribe Of Nebraska
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
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- Address: 4801 Southern Hills Drive Sioux City, 51106, IA
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- Address: 4100 Morningside Avenue Sioux City, 51106, IA
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- Address: 4224 Sergeant Road Sioux City, 51106, IA
- Gender: Male
- Address: 3434 South Lakeport Street Sioux City, 51106, IA
Questions & Answers
Where can you meet with Dr. Timothy Joseph Ernesti?
Dr. Timothy Joseph Ernesti's office is located at 4016 Morningside Avenue in Sioux City, IA 51106.
Does Dr. Timothy Joseph Ernesti accept insurance?
Dr. Timothy Joseph Ernesti is listed in-network for 4 ACA Marketplace (Obamacare/HealthCare.gov) plans from BEST Life. See the Marketplace plans section for details.
What conditions does Dr. Timothy Joseph Ernesti treat?
Dr. Timothy Joseph Ernesti provides treatment for Dental Malocclusion, Dentin Hypersensitivity, Gum Disease / Gingivitis, Laser, Teeth Grinding, Veneers. For the full list see this list.